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F84 Miniature Real-Time Controller - Build a simple real-time
controller with PIC16F84 running at low power X-tal 32,768Hz. Daily
scheduler for 6-channel resided in 64-byte EEPROM can easily be
preprogrammed using Nigel PicProg.... [Wichit Sirichote] |
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F84-Programmer - Before start build PIC circuit, one should
build this circuit first, a simple serial writer for PIC16F84 chip. The
circuit is so simple and easy-to-build. The writer works with Nigel
WPicProg16 and easily connecting to PCW PIC C Compiler. (circuit
added 09/09) |
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FACT001: Basic PIC16/17 Oscillator Design - Microchip
Application Note Published 10-Apr-02 (app note added 2/06) The
oscillator circuit is one of the most overlooked areas of microprocessor
Circuit design. Components are usually selected based on the
manufacturers? tables. If the circuit starts up and works, fine, no other
thought need be given to it, right? Wrong. Many conditions can negatively
affect the performance of your design.... |
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FACT003: Care & Feeding of the PIC16C74 & Its Peripherals -
Microchip Application Note Published 10-Apr-02 (app note added
06/06/06) |
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Failsafe Biasing Of Differential Buses - National Semiconductor Application
Note (app note added 6/06) |
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Fake Joystick Circuit - This simple circuit can be used to make the computer
to think that there is a real joystick connected to joystick port. This adapter
might be useful in some special computer testing applications when you don't have real
joystick available. ASCIII drawing. (added (6/03) |
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Fan Thermostat - Build a simple fan thermostat with LM35, ADC0804 and 89C51.
(circuit added 09/09) |
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FAN5230, FAN5233, FAN5235 Component Calculation SpreaDSheet & PSPICE Model Guide/
AB-19 - Fairchild Application Notes / (app note added 6/06) |
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Fast, compact routine interfaces EEPROM to µC - 03/04/99 Issue of EDN
The code in Listing 1 provides the interface between any MCS-51 family of µCs and a
24C01a/2/4/8/16 I2C EEPROM. The interface is purely software-driven, so any µC port
pins can control the EEPROM. This code is approximately two times smaller and
approximately 20% faster....Page includes several designs. Scroll to find this
one.... [Design Idea by Grzegorz Mazur, Institute of Computer Science, Nowowiejska,
Poland] |
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Fast-settling picoammeter circuit handles wide voltage range - 14-Sep-06
Issue of EDN Versatile circuit converts picoamperes to millivolts.... [Design
Idea by Rob Whitehouse, Analog Devices, Wilmington, MA; Edited by Brad Thompson and
Fran Granville] |
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Fax to Modem Interface - The circuit can be easily built to a small plastic
box with telephone connectors in both ends. The circuit takes about 10-20 mA current,
so if the circuit is not in use all the time it is best to use batteries. You can also
use small wall transformer to power the circuit. Remeber to take a wall transformer
which gives good quality output (regulated model preferred),....(design circuit added
8/02) |
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FDDI Adapter Card (SB-115) - National Semiconductor Application Note
(app note added 2/06) |
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FDDI Concentrator (SB-113) - National Semiconductor Application Note
(app note added 2/06) |
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FDDI Ethernet Router (SB-115) - National Semiconductor Application Note
(app note added 2/06) |
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FDDI: Adapter Card (SB-116) - National Semiconductor Application Note
(app note added 2/06) |
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Feeling Comfortable with Logic Analyzers - Aligent Application Note
(app note added 08/08) |
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Filter Solutions - PC windows based filter synthesis and analysis
software…..(electronic schematic / circuit added 08/09) [Tony van Roon's circuit] |
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Filtering PC Bus Power - Circuit is in ASCII format |
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Finding Transistor Pins - Use a cheap needle multimeter to find transistor
pins. (circuit added 09/09) |
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FIR filter scheme saves ROM storage space - 05/11/95 EDN-Design Ideas
[Design Idea added 6/06] EDN is migrating links. This link is not verified.
Google the "title" EDN for new link. |
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Firmware Based Protocol for Low Priority Data Transfer - (schematic /
circuit added 6/07) |
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Firmware Library Errata - Microchip Application Note Published 18-Aug-05
(app note added 2/06) |
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Flash Card - (application / block diagram added 6/07) |
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Flash Card Reader - ST provides high performace devices that assure the
quality of card-reader applications, devices ranging from smartcards and flash-cards,
dedicated microcontrollers with embedded serial memories, to various types of
peripheral interfaces, complete families of standard logic devices and supply
management circuits. (application / block diagram added 6/07) |
